Experimentally-guided finite element modeling on global tensile responses of AA6061-T6 aluminum alloy joints by laser welding

Sheng, Jie; Kong, Fanrong; Tong, Wei

doi:10.1016/j.jajp.2024.100229

Journal of Advanced Joining Processes

2024

DOI: 10.1016/j.jajp.2024.100229

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Experimentally-guided finite element modeling on global tensile responses of AA6061-T6 aluminum alloy joints by laser welding

Jie Sheng,

Fanrong Kong,

Wei Tong

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Cited by 2 publications

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The influences of nanoparticles on the microstructure evolution mechanism and mechanical properties of laser welded stainless steel/aluminum

Chen,

Li,

Kang

et al. 2024

Journal of Materials Research and Technology

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The influences of nanoparticles on the microstructure evolution mechanism and mechanical properties of laser welded stainless steel/aluminum

Chen,

Li,

Kang

et al. 2024

Journal of Materials Research and Technology

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Effect of Laser Heat Input on the Microstructures and Low-Cycle Fatigue Properties of Ti60 Laser Welded Joints

Zhang,

Ren,

Lei

et al. 2024

Crystals

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In this paper, the effects of laser heat input on the microstructures, tensile strength, and fatigue properties of Ti60 laser welded joints were investigated. The results show that with the increase in laser heat input, the macro morphology of the weld zone (WZ) changes from the Y-type to X-type. In the Y-type WZ, the porosity defects are almost eliminated. In contrast, there are a lot of porosity defects in the lower part of the X-type WZ. The microstructure of the base metal (BM) comprises equiaxed α phases, and β phases are mainly distributed at the boundaries of α phases. The heat-affected zone (HAZ) is comprised of α phases and acicular α′ phases, while the WZ mainly contains acicular α′ phases. With the increase in laser heat input, the quantity of the α phase gradually decreases and the acicular α′ phase gradually increases in the HAZ, and the size of the acicular α′ phase in the WZ gradually decreases. Due to the different microstructures, the hardness of BM is lower than the HAZ and WZ under different laser heat input conditions. In the tensile tests and low-cycle fatigue tests, the welded joints are fractured in BM. The porosity defects do not have decisive effects on the tensile and low-cycle fatigue properties of Ti60 laser welded joints.

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Experimentally-guided finite element modeling on global tensile responses of AA6061-T6 aluminum alloy joints by laser welding

Cited by 2 publications

References 46 publications

The influences of nanoparticles on the microstructure evolution mechanism and mechanical properties of laser welded stainless steel/aluminum

The influences of nanoparticles on the microstructure evolution mechanism and mechanical properties of laser welded stainless steel/aluminum

Effect of Laser Heat Input on the Microstructures and Low-Cycle Fatigue Properties of Ti60 Laser Welded Joints

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